Dev-Feeds

replace(search str, replace_str):  Replaces the very first occuance oif the search string.

string = 'Praise the Lord';
string = replace('Praise', 'Jesus is');
alert(string);

This returns: "Jesus is the Lord"

join() method implod the character or string between the single dimension array elements.

E.g:
x = [1,2,3,4]
x.join(",") #This returns "1,2,3,3"

rows.each do |row|
puts  row.id
end

Here rows is an array.

system()  method executes any commands that we can able to execute through terminal or konsole(console).

e.g
folder = "/tmp"
system("mkdir #{folder}") if !File.directory?(folder)

If you found any errors in the above coding , try to include the ftools library.

e.g
require 'ftools'
folder = "/tmp"
system("mkdir #{folder}") if !File.directory?(folder)

log_path = '/home/project/logs'
system("mkdir #{log_path}") if !File.directory?(log_path)
log_content = "test content"
File.open("#{log_path}/log_#{Time.now.to_i}.txt", 'a') { |file|
  file.write "#{log_content}"
}

☐ - HTML decimal: ☐
☑ - HTML decimal: ☑
✓ - HTML decimal: ✓
✔ - HTML decimal: ✔

Getting current time is very straight forward here.

The code is

Time.now # Returns Fri Mar 08 13:27:24 +0530 2013

Time.now.to_i # Returns the unix timestamp value 1362729785